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Ptolemaeus Arabus et Latinus

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Vatican, Biblioteca Apostolica Vaticana, Vat. lat. 7616

s. XIII.

Parchment, 81 f. (printed foliation in lower right corner), a single neat hand (except for f. 81r), illuminated initials f. 1r, 45v and 63r, numerous decorated initials.

Astrology: Ptolemaica (1ra-44vb, 44vb-45ra and 45va-61rb); Aomar, De nativitatibus (62ra-79va); table with instructions ‘Per hanc tabulam scitur quot dies et hore proveniant pro unoquoque gradu et minuto de signo profectionis…’ (79v); ‘Cum fuerit significator in gradu medii celi dirigetur per ascensiones circuli directi…’ (80ra-80vb); two added horoscopes, the first one for 12 July 1402 (according to the planetary positions) and the second empty (81r). Blank: 61v-62v, 81v.

Lit.

Inventarium codicum Latinorum Bibliothecae Vaticanae, X (handwritten catalogue by J. B. de Rossi, dated 1876-1878), 137r.

1ra‑44vb

‘Incipit liber 4 tractatuum Pthol<ome>i Alfilludhi in scientia iudiciorum astrorum. Et in primo tractatu sunt 24 capitula. Capitulum primum in collectione intellectus scientie iudiciorum astrorum. Rerum, Yesure, in quibus est prognostigabilis scientie stellarum profectio magnas et pricipuas duas — hoc in loco huic libro finem i<m>ponere non incongruunt existimamus. Explicit liber quatuor Batlomei in radicandi discretione per stellas de futuris et in hoc mento constitutionis et destructionis contingentibus.’

= Ptolemy, Quadripartitum (tr. Plato of Tivoli) (A.2.1)

. I, 1ra-11rb; II, 11rb-21rb; III, 21rb-36ra; IV, 36ra-44vb. Substantial glosses by the scribe, some of which open ‘Sensus huius littere est…’, ‘In alio…’ or ‘Dicit Aly…’. A few glosses by a later medieval hand.

44vb‑45ra

‘Capitulum proiectionis radiorum. Cum proiectione radiorum stellarum scire volueris, scias gradus ascendentis — erit locus radiationis equate.’

45va‑61rb

‘Incipit Centiloquium. Dixerunt Ptol<omeu>s et Hermes quod locus Lune — (45vb) et hoc expertus fuit multociens. Nota de speciebus cometarum. Ptolomeus dixit quod stelle cum caudis sunt novem — (46rb) in regibus et divitibus apparebit. Dixit Ptol<omeu>s: Iam scripsi tibi, Iesure, libros de hoc quod operantur stelle in hoc seculo… Scientia stellarum ex te et illis est… Quod dixit Ptol<omeu>s, ex te et ex illis, significat quod qui res futuras prenoscere desiderat — et ego Deum precor ut te diligat. Et perfecta est huius libri translatio 17 die mensis Martii, 12 die mensis Gumedi secundi anno Arabum 530, etc.’

= Pseudo-Ptolemy, Centiloquium (tr. Plato of Tivoli) (B.1.2)

, opening with Pseudo-Ptolemy’s Dixerunt Ptholomeus et Hermes quod locus Lune… (B.10) on f. 45va-45vb and De cometis (B.4) on f. 45vb-46rb. Substantial glosses by the scribe (some of which introduced by ‘Sensus est…’ or ‘Sensus huius littere…’) and by other hands.